A sheath dress is a simple and fitted style of dress that closely follows the shape of the body from the shoulders to the knees or lower. It does not have extra fabric or layers, making it sleek and form-fitting. Full definition
I was wearing a white sheath dress with a black ribbon which I specifically chose because I'd be able to wear it again after the wedding, and paired it with one of my old sandals that I had brought with me from Manila. (oneawesomemomma.com)
Free shipping Style: Sexy & Club Material: Polyester Silhouette: Sheath Dresses Length: Mini Neckline: Round Collar Sleeve Length: Short Sleeves Pattern Type: Solid With Belt: No Season: Summer (dresslily.com)
In 1961, Hepburn wore a Hubert de Givenchy black sheath dress in the film Breakfast at Tiffany's. (en.wikipedia.org)